i agree this happens all the time not only at the grocery store but mostly a retail stores ,i get there 5 minutes after the sale has begun and they say they are sold out and are not issueinf a rain check or a substitue! it is very upsetting , i think this needs to be stopped, make them have at least 20 or more of the things on sale before advertising it and if they get caught make a steep monitary fine , this should be done to every store that has advertising, the people that make or break there stores (the customer) are the ones that are keeping them in business, if this happens at a certain store that i shop at more than once i will shop elsewhere and also let everyone else that i know that this scheme is happening please try to find a way for this to stop !!! and make it fair to the consumer